MAX1032, MAX1033 8-/4-Channel, ±12V Multirange Inputs, Serial 14-Bit ADCs

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The MAX1032/MAX1033 multirange, low-power, 14-bit, successive-approximation, analog-to-digital converters (ADCs) operate from a single +5V supply and achieve throughput rates up to 115ksps. A separate digital supply allows digital interfacing with 2.7V to 5.25V systems using the SPI™-/QSPI™-/MICROWIRE™-compatible serial interface. Partial power-down mode reduces the supply current to 1.3mA (typ). Full power-down mode reduces the power-supply current to 1µA (typ).

The MAX1032 provides eight (single-ended) or four (true differential) analog input channels. The MAX1033 provides four (single-ended) or two (true differential) analog input channels. Each analog input channel is independently software programmable for seven single-ended input ranges (0 to +6V, -6V to 0, 0 to +12V, -12V to 0, ±3V, ±6V, and ±12V), and three differential input ranges (±6V, ±12V, ±24V).

An on-chip +4.096V reference offers a small convenient ADC solution. The MAX1032/MAX1033 also accept an external reference voltage between 3.800V and 4.136V.

The MAX1032 is available in a 24-pin TSSOP package and the MAX1033 is available in a 20-pin TSSOP package. Each device is specified for operation from -40°C to +85°C.

Key Features

Applications/Uses

Software-Programmable Input Range for Each Channel
Single-Ended Input Ranges:
- 0 to +6V, -6V to 0, 0 to +12V, -12V to 0, ±3V,
- ±6V, and ±12V
Differential Input Ranges
- ±6V, ±12V, and ±24V
Eight Single-Ended or Four Differential Analog Inputs (MAX1032)
Four Single-Ended or Two Differential Analog Inputs (MAX1033)
±16.5V Overvoltage Tolerant Inputs
Internal or External Reference
115ksps Maximum Sample Rate
Single +5V Power Supply
20-/24-Pin TSSOP Package

	Avionics
	Data Acquisition Systems
	Industrial Control Systems
	Robotics

Key Specifications: Precision ADCs (< 5Msps)

Part Number

ADC Resolution (Bits)

Input Channels

Conv. Rate (ksps)

Max. Conv. Time (µs)

Data Bus (Bits)

Ref. (V)

Input Range (V)

Diff. In

Supply Voltage (V)

Typ. Supply Current (mA)

Typ. Power (mW)

Low Power Mode

Standby Mode

EV-Kit

Package

Smallest Available Package (max w/pins) (mm²)

RoHS Available

Operating Temp. Range (°C)

Price^*

MAX1032

130

7.69

Serial

Ext
Int +4.096

±12
±24
±3
±6
0 to 12
0 to 6
12 to 0
6 to 0

Yes

31.5

0.157

Yes

See Data Sheet

-40 to +85

MAX1033

27.5

TSSOP/20

Yes

$17.95 @ 1k

See All Precision ADCs (< 5Msps) (314)

Notes:
^*This pricing is BUDGETARY, for comparing similar parts. Prices are in U.S. dollars and subject to change. Quantity pricing may vary substantially and international prices may differ due to local duties, taxes, fees, and exchange rates. For volume-specific prices and delivery, please see the price and availability page or contact an authorized distributor.